Description
The PulmoGuard S Filters are positioned by SDI as the replacement for MicroGard filters. They bring the family specification to that installed base: 99.999 percent cross contamination efficiency with a documented 73 ml dead space. Three pack sizes cover the standard 50 and 100 count boxes and a 200 count restock.
About These PFT Filters
Labs running MicroGard filters need a continuing supply as platforms age, and this line is the SDI answer for that base. The pleated media reaches 99.999 percent cross contamination efficiency while meeting ATS air resistance standards. Dead space is 73 ml and air resistance is 0.17 cm H2O per L/s, both published for the lab record. The compact housing is transparent, so the media can be inspected completely before use. SDI describes the design as non intimidating for the patient, which matters when the person at the mouthpiece is already anxious.
Features and Benefits
Replacement Role
- MicroGard replacement – Offered by SDI as the perfect replacement for MicroGard filters, per the manufacturer
- Published figures – Dead space and air resistance are stated values a lab can file
Filtration Performance
- 99.999 percent efficiency – Cross contamination efficiency at the family standard
- Pleated media – Efficiency held at low resistance across the maneuver
- Transparent housing – Complete visual inspection of the filter before it goes into service
Product Specifications
Filter Details
- Cross Contamination Efficiency: 99.999 percent
- Dead Space: 73 ml
- Air Resistance: 0.17 cm H2O per L/s
- Media: Pleated
- Housing: Transparent for visual inspection
- Replacement For: MicroGard filters
- Country of Origin: Made in the USA
Configuration Details
- 29-3105-050: 50 filters per box
- 29-3105-100: 100 filters per box
- 29-3105-200: 200 filters (4 boxes of 50)
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Why Choose the PulmoGuard S Filters?
A replacement filter earns its place on documented equivalence, not on a label claim. This line publishes the efficiency, dead space and resistance figures the lab needs to make that judgment.
- Continuity of supply – MicroGard users keep testing on a current production filter
- Numbers on record – 73 ml dead space and 0.17 resistance are stated, a differentiator over unmeasured replacements
- Patient friendly form – the compact, non intimidating housing helps first time patients settle into the maneuver
Frequently Asked Questions
What are these filters a replacement for?
SDI offers them as the replacement for MicroGard filters, per the manufacturer.
What are the key specifications?
Cross contamination efficiency is 99.999 percent, dead space is 73 ml, and air resistance is 0.17 cm H2O per L/s.
What pack sizes are available?
Boxes of 50 and 100, plus a 200 count option packed as four boxes of 50.
Can staff inspect the filter before use?
Yes. The housing is transparent, allowing a complete visual inspection of the pleated media.
Is this the genuine SDI product?
Yes. These are genuine SDI Diagnostics filters under the 29-3105 part numbers shown in the specifications, made in the USA.
